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Finding the Fourth Proportional to 318,224.96, 439,138.64 and 174,976.48

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Solution

The fourth proportional to 318,224.96, 439,138.64 and 174,976.48 is: 241,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,224.96 : 439,138.64 = 174,976.48 : x
  2. Step 2: Convert to fraction form
    318,224.96/439,138.64 = 174,976.48/x
  3. Step 3: Cross multiply
    318,224.96x = 439,138.64 × 174,976.48
  4. Step 4: Simplify right side
    318,224.96x = 76,838,933,459.19
  5. Step 5: Solve for x
    x = 76,838,933,459.19/318,224.96
  6. Step 6: Final answer
    x = 241,461.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.